Florian,
I had the same issue using Asterisk and Kamailio. Basically the problem is that Asterisk interprets the call as a Loop (in the worst case) or might continue resolving the call locally without taking care of the changes you made in Kamaili.
I solved my issue using 3XX (redirect) messages. Example: sl_send_reply("301", "Go Here");
Try that on teh first place, then you can continue using Asterisk's dialplan to change message details.
Cheers, Uriel
On Tue, Dec 1, 2009 at 11:39 AM, Florian Meister < Florian.Meister@teleport.vol.at> wrote:
Hi,
basically I'm using this structure at the moment:
SIP Users <----> Kamailio <-----> Asterisk <-----> PSTN
I have to add a diversion-functionality at kamailio-level, so to simply rewrite $ru with something else defined in the database. That's working without problems. For billing issues, I also have to add a Remote-Party-ID header, set to the SIP user, which initiated the redirect in the database.
Now to the problem:
When a call is coming from PSTN, it's passing the asterisk server, then at kamailio level $ru is rewritten and sent back to asterisk (I'm talking about a redirect to a number in PSTN here)
What I've seen from the logs is, that asterisk is seeing that it gets an invite back with the same call-id, and therefore it cancels the original invite and handles the whole call internally via the Local Channel. The Problem is, that in the invite sent from kamailio back to asterisk, I've set a Remote-Party-ID header to tell asterisk to set the Callerid correctly for billing purposes. Now it seems that asterisk is _ignoring_ this header from the second invite.
So is this an expected behavior ? If yes, how to do it correctly ?
Below you can see the verbose output of asterisk. Since the call is handled at "Local" Channels the function to read sip headers does not work. The only message I get is "thanks to SIP/tpsiptestproxyu01-00d0a0b8".
-- Called tpsiptestproxyu01/+435572949012 -- Now forwarding DAHDI/2-1 to 'Local/066480588134@from-internal' (thanks to SIP/tpsiptestproxyu01-00d0a0b8) -- Executing [066480588134@from-internal:1] NoOp("Local/066480588134@from-internal-d69e;2", "435572501134") in new stack [Dec 1 15:14:50] WARNING[20506]: chan_sip.c:15797 func_header_read: This function can only be used on SIP channels. -- Executing [066480588134@from-internal:2] NoOp("Local/066480588134@from-internal-d69e;2", "") in new stack -- Executing [066480588134@from-internal:3] Dial("Local/066480588134@from-internal-d69e;2", "DAHDI/G0/066480588134") in new stack -- Requested transfer capability: 0x00 - SPEECH -- Called G0/066480588134 -- DAHDI/124-1 is proceeding passing it to Local/066480588134@from-internal-d69e;2 -- Local/066480588134@from-internal-d69e;1 is proceeding passing it to DAHDI/2-1
In the SIP debug you can see that asterisk is cancelling the dialog with kamailio and doing it itself:
13:49:30.589054 IP [--ASTERISK--].5060 > [--KAMAILIO--].5060: SIP, length: 938 E.......@..L..,L..,N........INVITE sip:+435572949012@[--KAMAILIO--] SIP/2.0 Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport Max-Forwards: 70 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@[--KAMAILIO--] Contact: sip:435572501134@[--ASTERISK--] Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 INVITE User-Agent: Asterisk PBX 1.6.1.5 Remote-Party-ID: "435572501134" sip:435572501134@ [--ASTERISK--];privacy=off;screen=yes Date: Tue, 01 Dec 2009 12:49:30 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces, timer Content-Type: application/sdp Content-Length: 263
v=0 o=root 930830518 930830518 IN IP4 [--ASTERISK--] s=Asterisk PBX 1.6.1.5 c=IN IP4 [--ASTERISK--] t=0 0 m=audio 16924 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - a=ptime:20 a=sendrecv
13:49:30.591037 IP [--KAMAILIO--].5060 > [--ASTERISK--].5060: SIP, length: 342 E..r..@.@.[0..,N..,L.....^.aSIP/2.0 100 Trying Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport=5060 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@[--KAMAILIO--] Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 INVITE Server: OpenSER (1.3.2-notls (x86_64/linux)) Content-Length: 0
13:49:30.594345 IP [--KAMAILIO--].5060 > [--ASTERISK--].5060: SIP, length: 1093 E..a..@.@.XA..,N..,L.....M+LINVITE sip:066480588134@[--ASTERISK--]:5060;transport=udp SIP/2.0 Record-Route: sip:[--KAMAILIO--];lr;ftag=as27658014 Via: SIP/2.0/UDP [--KAMAILIO--];branch=z9hG4bK06.05390227.0 Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport=5060 Max-Forwards: 69 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@[--KAMAILIO--] Contact: sip:435572501134@[--ASTERISK--] Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 INVITE User-Agent: Asterisk PBX 1.6.1.5 Date: Tue, 01 Dec 2009 12:49:30 GMT Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY, INFO Supported: replaces, timer Content-Type: application/sdp Content-Length: 263 Remote-Party-ID: "435572949012" <sip:435572949012@tpseru01.tele.netsip%3A435572949012@tpseru01.tele.net
;party=caller;privacy=none;screen=yes
v=0 o=root 930830518 930830518 IN IP4 [--ASTERISK--] s=Asterisk PBX 1.6.1.5 c=IN IP4 [--ASTERISK--] t=0 0 m=audio 16924 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=silenceSupp:off - - - - a=ptime:20 a=sendrecv
13:49:30.594605 IP [--ASTERISK--].5060 > [--KAMAILIO--].5060: SIP, length: 460 E.......@..)..,L..,N....... CANCEL sip:+435572949012@[--KAMAILIO--] SIP/2.0 Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport Max-Forwards: 70 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@[--KAMAILIO--] Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 CANCEL User-Agent: Asterisk PBX 1.6.1.5 Remote-Party-ID: "435572501134" sip:435572501134@ [--ASTERISK--];privacy=off;screen=yes Content-Length: 0
13:49:30.596307 IP [--KAMAILIO--].5060 > [--ASTERISK--].5060: SIP, length: 387 E.....@.@.[...,N..,L.......KSIP/2.0 200 canceling Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport=5060 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@ [--KAMAILIO--];tag=45db18648893e7acabf725621374d382-4ddb Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 CANCEL Server: OpenSER (1.3.2-notls (x86_64/linux)) Content-Length: 0
13:49:30.596801 IP [--KAMAILIO--].5060 > [--ASTERISK--].5060: SIP, length: 396 E.....@.@.Z...,N..,L.......kSIP/2.0 487 Request Terminated Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport=5060 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@ [--KAMAILIO--];tag=45db18648893e7acabf725621374d382-4ddb Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 INVITE Server: OpenSER (1.3.2-notls (x86_64/linux)) Content-Length: 0
13:49:30.596842 IP [--ASTERISK--].5060 > [--KAMAILIO--].5060: SIP, length: 539 E..7....@.....,L..,N.....#.oACK sip:+435572949012@[--KAMAILIO--] SIP/2.0 Via: SIP/2.0/UDP [--ASTERISK--]:5060;branch=z9hG4bK5629d66b;rport Max-Forwards: 70 From: "435572501134" sip:435572501134@[--ASTERISK--];tag=as27658014 To: sip:+435572949012@ [--KAMAILIO--];tag=45db18648893e7acabf725621374d382-4ddb Contact: sip:435572501134@[--ASTERISK--] Call-ID: 4bbee84339a9e2d30850185317983625@[--ASTERISK--] CSeq: 102 ACK User-Agent: Asterisk PBX 1.6.1.5 Remote-Party-ID: "435572501134" sip:435572501134@ [--ASTERISK--];privacy=off;screen=yes Content-Length: 0
Thanks,
Florian
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